This program converts LDD's .g files to .obj files.
Drop the .g or .txt file (GBAT) onto the converter.
You can download it here.
GBAT stands for .G file BATch and is a .txt file.
The format of a GBAT file:
Line 001: `GBAT` (magic)
Line 002: Input-Directory
Line 003: Output-Directory
Line ...: The files and their folder structure.
... ... ...